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. 2021 Jul 31;9(8):972.
doi: 10.3390/healthcare9080972.

Hair Analysis to Evaluate Polydrug Use

Giovanna Tassoni  1 , Marta Cippitelli  1 , Gianmario Mietti  1 , Alice Cerioni  1 , Erika Buratti  1 , Emanuele Bury  1 , Mariano Cingolani  1
Affiliations

Hair Analysis to Evaluate Polydrug Use

Giovanna Tassoni et al. Healthcare (Basel). .

Abstract

Polydrug use is a frequent pattern of consumption in Europe. This behavior has mainly been analyzed within restricted groups; more rarely in large populations. Current polydrug use is less studied than simultaneous use. This study focused on the concurrent assumption of polydrug among drivers using hair matrix. Hair matrix, for its biological characteristics, allows to identify illicit drug use more often than other matrices, i.e., urine, and it provides information on the long-term use of them. Hair samples of subjects positive for opiates, cocaine and delta-9-tetrahydrocannabinol (Δ9-THC) collected by the forensic toxicology laboratory of the University of Macerata in the period 2010-2020, were analyzed using a gas chromatography-mass spectrometry method. Our results evidenced that a significant part of the examined population (12.15%) used polydrug. A strong predominance of males over females was evident. Polydrug users were more frequently young people. The abuse of two substances was predominant. Cocaine and Δ9-THC was the most common combination, followed by cocaine and morphine, and morphine and Δ9-THC. The timeframe of polydrug use was also analyzed. Our study shows that polydrug use is a very frequent behavior, and that hair analysis may be a powerful tool to obtain objective biological information of this complex phenomenon.

Keywords: driving people; hair; polydrug use.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Drugs/year distribution of monodrug users’ group (MDU).
Figure 2
Figure 2
Drugs/year distribution of polydrug users’ group (PDU).
See this image and copyright information in PMC

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